05000397/FIN-2012502-02
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Finding | |
|---|---|
| Title | Failure to Maintain Accurate Methods for Dose Assessment |
| Description | An apparent violation of 10 CFR 50.54(q) was identified involving the failure to maintain adequate methods for assessing the actual or potential consequences of a radiological emergency between April 2000 and December 2011 in accordance with the requirements of 10 CFR 50.47(b)(9). The licensee incorporated inaccurate gas calibration and Xenon equivalency factors into dose projection software, resulting in inaccurate offsite dose calculations involving radiological releases measured by the reactor building effluent radiation monitor. The inspectors determined the failure to maintain a dose assessment process capable of providing a technically adequate estimate of offsite dose was a performance deficiency within the licensees control. This finding is more than minor because it was associated with the emergency response organization performance and the Facilities and Equipment cornerstone attributes. This finding was evaluated using the Emergency Preparedness Significance Determination Process and was preliminarily determined to be of low to moderate safety significance (White) because it was a degraded risk significant planning standard function. The planning standard function was degraded because some methods for assessing the offsite consequences of a radiological release were inaccurate between April 2000 and December 2011. This issue has been entered into the licensees corrective action system as Action Requests AR00244316 and AR00244578 |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2012502 Section 1EP5 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | Violation: White |
| cornerstone | Emergency Prep |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71114.05 |
| Inspectors (proximate) | W Walker C Osterholtz E Schrader P Elkmann T Browne Schraderg Guerra P Elkmann T Blounta Howelle Collins G Gulla H Gepford K Fuller M Haire P Elkmann R Browder T Blount |
| INPO aspect | |
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Finding - Columbia - IR 05000397/2012502 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2012Q2
Self-Identified List (Columbia)
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